Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September reveals a small adjustment in temperature, transitioning from an average high of a torrid 95.9°F (35.5°C) in August to a tropical 89.4°F (31.9°C). In September, the average low-temperature is a pleasant 69.4°F (20.8°C).Heat index
For most parts of September, the heat index is evaluated at an extremely hot 105.8°F (41°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.Heat index's context suggests values are appropriate for shady areas and slight breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.
Humidity
In September, the average relative humidity is 73%.Rainfall
In September, the rain falls for 17 days. Throughout September, 3.19" (81mm) of precipitation is accumulated. In Huntsville, during the entire year, the rain falls for 167.1 days and collects up to 33.54" (852mm) of precipitation.Snowfall
March through November are months without snowfall.Daylight
The average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:59 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:15 am and sunset at 7:08 pm CDT.
Sunshine
The average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: During September, 6 as the daily maximum UV index converts into the following advice:
Stay clear of intense sun exposure. Solar protection is of utmost significance. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September in Huntsville?
Average temperature in September
Huntsville, TX
- Average high temperature in September: 89.4°F
The warmest month (with the highest average high temperature) is August (95.9°F).
The month with the lowest average high temperature is January (58.5°F).
- Average low temperature in September: 69.4°F
The months with the highest average low temperature are July and August (73.9°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).
Average pressure in September
Huntsville, TX
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Huntsville, TX
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is September (5.1mph).
Average humidity in September
Huntsville, TX
- Average humidity in September: 73%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Huntsville, TX
- Average rainfall in September: 3.19"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is November (1.93").
Average rainfall days in September
Huntsville, TX
- Average rainfall days in September: 17 days
The month with the highest number of rainy days is September (17 days).
The months with the least rainy days are January and October (11.3 days).
Average snowfall in September
Huntsville, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Huntsville, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Huntsville, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Huntsville, TX
- Average sunshine days in September: 10.4 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is September (10.4 days).
Average UV index in September
Huntsville, TX
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Huntsville, TX
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Huntsville, TX
- Average visibility in September: 5mi
The months with the highest visibility are January, August, October and November (6mi).
The months with the lowest visibility are February, March, April, May, June, July, September and December (5mi).
Huntsville, Texas, USA
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